Inventories (Tables)

12 Months Ended

Jul. 31, 2018

Inventory Disclosure [Abstract]

Inventories

Inventories consist of the following at July 31, 2018 and 2017:

	2018		2017
Raw materials and components	$	53,649,000	50,569,000
Work-in-process and finished goods	38,854,000		26,053,000
Total inventories	92,503,000		76,622,000
Less reserve for excess and obsolete inventories	17,427,000		16,019,000
Inventories, net	$	75,076,000	60,603,000